The smallest number with three different prime factors is 30.
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The smallest three digit prime number is 101.
If by "least number" you mean "smallest positive integer", then the answer is the product of the three smallest primes: 2x3x5 = 30
Oh, dude, the smallest number with 2, 5, and 7 as prime factors is 70. It's like the VIP of numbers, with all those cool prime factors hanging out together. So, yeah, 70 is the magic number you're looking for.
The number in question can be found by multiplying the prime factors together: 2 x 7 x 11 = 154. This means that 154 is the smallest number with these prime factors. In general, the prime factorization of a number involves breaking it down into its prime factors, which are the smallest prime numbers that divide evenly into the original number.
The smallest prime number that will divide 147 evenly is three.